=== modified file 'dhis-2/dhis-api/src/main/java/org/hisp/dhis/reporttable/ReportTable.java'
--- dhis-2/dhis-api/src/main/java/org/hisp/dhis/reporttable/ReportTable.java	2011-12-23 10:50:09 +0000
+++ dhis-2/dhis-api/src/main/java/org/hisp/dhis/reporttable/ReportTable.java	2011-12-23 18:06:22 +0000
@@ -469,7 +469,10 @@
 
             for ( NameableObject unit : allUnits )
             {
-                map.put( unit.getId(), ((OrganisationUnit) unit).getGroupNameInGroupSet( groupSet ) );
+                if ( unit instanceof OrganisationUnit )
+                {
+                    map.put( unit.getId(), ((OrganisationUnit) unit).getGroupNameInGroupSet( groupSet ) );
+                }
             }
 
             organisationUnitGroupMap.put( columnEncode( KEY_ORGUNIT_GROUPSET + groupSet.getName() ), map );